英文论文
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文献类型
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Journal article (JA)
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题名
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Microbiological quality of roof tank water in an urban village in southeastern China
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作者
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Hu, Dong; Zeng, Jie; Chen, Jing; Lin, Wenfang; Xiao, Xinyan; Feng, Mingbao; Yu, Xin
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作者单位
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[Hu, Dong; Zeng, Jie; Lin, Wenfang] Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China. [Hu, Dong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China. [Chen, Jing] Shitang Community Hlth Serv Ctr, Xiamen 361026, Peoples R China. [Xiao, Xinyan; Feng, Mingbao; Yu, Xin] Xiamen Univ, Coll Environm & Ecol, Xiamen 361005, Peoples R China.
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通讯作者地址
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Xiamen Univ, Coll Environm & Ecol, Xiamen 361005, Peoples R China.
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Email
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taianhudong@163.com; xyu@xmu.edu.cn
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ResearchID
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ORCID
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期刊名称
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Journal of Environmental Sciences (China)
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出版社
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Chinese Academy of Sciences
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ISSN
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1001-0742
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出版信息
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2023-03, 125:148-159.
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JCR
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影响因子
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ISBN
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基金
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National Natural Science Foundation of China [41861144023, U2005206]; Xiamen Municipal Bureau of Science and Technology [YDZX20203502000003]; Natural Science Foundation of Fujian Province [2020J05090]
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会议名称
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会议地点
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会议开始日期
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会议结束日期
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关键词
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Chlorine; Deterioration; Genes; Health risks; Microorganisms; Polymerase chain reaction; Roofs; Rural areas; Virtual storage; Water quality
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摘要
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Urban villages are unique residential neighborhoods in urban areas in China. Roof tanks are their main form of water supply, and water quality deterioration might occur in this system because of poor hygienic conditions and maintenance. In this study, water samples were seasonally collected from an urban village to investigate the influence of roof tanks as an additional water storage device on the variation in the microbial community structure and pathogenic gene markers. Water stagnation in the roof tank induced significant decreases in chlorine (p < 0.05), residual chlorine was as low as 0.02 mg/L in spring. Propidium monoazide (PMA)-qPCR revealed a one-magnitude higher level of total viable bacterial concentration in roof tank water samples (2.14 +/- 1.81 x 10(5) gene copies/mL) than that in input water samples (3.57 +/- 2.90 x 10(4) gene copies/mL, p < 0.05), especially in spring and summer. In addition, pathogenic fungi, Mycobacterium spp., and Legionella spp. were frequently detected in the roof tanks. Terminal users might be exposed to higher microbial risk induced by high abundance of Legionella gene marker. Spearman's rank correlation and redundancy analysis showed that residual chlorine was the driving force that promoted bacterial colonization and shaped the microbial community. It is worth noted that the sediment in the pipe will be agitated when the water supply is restored after the water outages, which can trigger an increase in turbidity and bacterial biomass. Overall, the findings provide practical suggestions for controlling microbiological health risks in roof tanks in urban villages. (c) 2022TheResearch Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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一级学科
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Environmental Sciences
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WOS入藏号
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WOS:000798824100013
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EI收录号
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20220711624854
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DOI
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10.1016/j.jes.2022.01.036
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ESI
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收录于
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SCIE, EI
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